Octagonal sump



FIG. 1 is a perspective view showing the top and four sidewalls of an octagonal sump comprising a base, riser and lid illustrating my new design;

FIG. 2 is a perspective view showing the open upper end and four sidewalls of the base of the octagonal sump of FIG. 1;

FIG. 3 is a side elevation view of the base of FIG. 2 showing three sidewalls;

FIG. 4 is a bottom plan view of the base of FIG. 2;

FIG. 5 is a top plan view of the base of FIG. 2;

FIG. 6 is a perspective view showing the top and four edges of the lid of the octagonal sump of FIG. 1;

FIG. 7 is a perspective view showing the bottom and four edges of the lid of the octagonal sump of FIG. 1;

FIG. 8 is a bottom plan view of the lid of the octagonal sump of FIG. 1;

FIG. 9 is a top plan view of the lid of the octagonal sump of FIG. 1;

FIG. 10 is a side elevation view of the lid of the octagonal sump of FIG. 1;

FIG. 11 is a perspective view of one of the two identical halves of the riser of the octagonal sump of FIG. 1;

FIG. 12 is a top plan view of the riser half of the octagonal sump of FIG. 1;

FIG. 13 is a side elevation view of the riser half of the octagonal sump of FIG. 1 with the inner surface of the sidewall thereof visible;

FIG. 14 is a side elevation view of the riser half of the octagonal sump of FIG. 1 with the outer surface of the sidewall thereof visible;

FIG. 15 is a perspective view of one of the two identical halves similar to FIG. 11, but illustrating a first modification of the riser of the octagonal sump of FIG. 1 shown separately for clarity of illustration; and;

FIG. 16 is a perspective view of one of the two identical halves similar to FIG. 11, but illustrating a second modification of the riser of the octagonal sump of FIG. 1 shown separately for clarity of illustration; 

The ornamental design for an octagonal sump, as shown and described. 